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A kind of preparation method of pyrrole oligomer

A technology of oligomers and pyrrole oligomers, which is applied in the field of preparation of conductive polymer oligomers, can solve the problems of products with short reaction time, products that are difficult to dissolve, and difficult to obtain, and achieve low cost, save metal resources, and reduce costs Effect

Active Publication Date: 2019-07-23
东营曜康医药科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both methods have their own advantages and disadvantages: the advantage of the former is that the monomer polymerization reaction time is short, it is easy to realize the controlled synthesis of particle morphology, and the conductivity of the product is better; the disadvantage is that the product is difficult to dissolve in conventional organic solvents, and it is not easy to obtain Conductive polymer film and solution post-treatment are cumbersome; the advantage of the latter is that there is no solvent in the polymerization process of the monomer, and a conductive polymer film can be deposited on the surface of any substrate without the need for conductive polymer dissolution. ; The disadvantage is that before coating the surface of the substrate, it is necessary to coat a layer of oxidant film. After the reaction, the oxidant needs to be removed by cleaning.
However, using oxygen or air as an oxidant to synthesize polypyrrole or pyrrole oligomers by chemical vapor deposition has not been reported in the literature so far.

Method used

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  • A kind of preparation method of pyrrole oligomer
  • A kind of preparation method of pyrrole oligomer
  • A kind of preparation method of pyrrole oligomer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A preparation method of pyrrole oligomer, the steps are as follows:

[0051] (1) Add 50 μL of pyrrole into a 50 mL container containing 1 g of activated carbon powder, seal the container, shake the container to mix the activated carbon powder and pyrrole evenly, and mature at room temperature for 30 days. During the aging period, the container was shaken twice a day, and the shaking time was not less than 1 min each time. After the aging period, the activated carbon / pyrrole oligomer complex was obtained.

[0052] (2) Disperse the activated carbon / pyrrole oligomer complex obtained in step (1) in 10 mL N,N-dimethylformamide solution, shake well, and let it stand at room temperature for 24 h; centrifuge, and collect the supernatant liquid.

[0053] (3) The supernatant obtained in step (2) was distilled off the solvent under reduced pressure to obtain a pyrrole oligomer sample.

Embodiment 2

[0055] A preparation method of pyrrole oligomer, the steps are as follows:

[0056] (1) Add 10 μL of pyrrole into a 50 mL container containing 1 g of carbon cloth, seal the container, and mature at room temperature for 7 days to obtain a carbon cloth / pyrrole oligomer complex.

[0057] (2) Soak the carbon cloth / pyrrole oligomer composite obtained in step (1) in 5 mL of methanol solution, and let it stand at room temperature for 24 h; take out the carbon cloth and keep the liquid.

[0058] (3) Distill the liquid obtained in step (2) to remove the solvent under reduced pressure to obtain a sample of pyrrole oligomer.

Embodiment 3

[0060] Others are the same as embodiment 1, the difference is:

[0061] 30 μL of pyrrole was added to a 50 mL container containing 1 g of granular carbon, and the container was stirred to mix the activated carbon powder and pyrrole evenly, and aged at room temperature for 10 days. During the aging period, the container was shaken 3 times a day, and the shaking time was not less than 15 min each time. The obtained complex was immersed in 5 mL tetrahydrofuran solution, and stood at room temperature for 28 h; centrifuged, and the supernatant was collected.

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Abstract

The invention relates to a preparation method of a pyrrole oligomer, and belongs to the technical field of conductive polymer preparation. The preparation method comprises following steps: a, a carrier is introduced into a container; b, pyrrole is introduced into the same container, and the container is sealed; c, pyrrole and the carrier are uniformly mixed in the container, and are subjected to curing so as to obtain a carrier / pyrrole oligomer compound; d, the carrier / pyrrole oligomer compound is dispersed in an organic solvent, is allowed to stand at room temperature under sealed conditionsso as to realize dissolving of the pyrrole oligomer into the organic solvent, and then solid liquid separation is carried out, and a supernatant is collected; e, the supernatant is subjected to distillation or underpressure distillation so as to obtain the pyrrole oligomer. According to the preparation method, oxygen gas in the air is taken as an oxidizing agent, no metal / transition-metal catalystassistant is needed, chemical vapor deposition method is adopted, synthesis of the pyrrole oligomer on the surface of a carbon material substrate is realized. Air source is abundant, cost is low, andthe preparation method is friendly to the environment.

Description

technical field [0001] The invention relates to a preparation method of a conductive polymer oligomer, belonging to the technical field of conductive polymer preparation. Background technique [0002] Conductive polymers, also known as conductive polymers, are a class of polymer materials with large π-conjugated molecular skeletons that can be converted from insulators to conductors by chemical or electrochemical doping. Common conductive polymers are polypyrrole, polyaniline, polythiophene and polyacetylene. [0003] Polypyrrole, polyaniline and polythiophene obtained by chemical or electrochemical oxidation polymerization with five-membered aromatic heterocyclic molecules (pyrrole, aniline, thiophene) as monomers have the advantages of easy synthesis, high electrical conductivity, environmental friendliness and biological The advantages of compatibility (J. Phys. Chem. C, 2009, 113, 21586-21595.), in energy storage and conversion, microwave absorption, electrostatic prote...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D207/323
CPCC07D207/323
Inventor 盖利刚郭秀梅徐振班青
Owner 东营曜康医药科技有限公司